EP 0672075 B1 19970521 - POLYURETHANES CURED WITH 4,4'-METHYLENE-BIS-(3-CHLORO-2,6-DIETHYLANILINE)
Title (en)
POLYURETHANES CURED WITH 4,4'-METHYLENE-BIS-(3-CHLORO-2,6-DIETHYLANILINE)
Title (de)
MITTELS 4,4'-METHYLEN-BIS(3-CHLORO-2,6-DIETHYLANILIN) GEHÄRTETE POLYURETHANE
Title (fr)
POLYURETHANNES DURCIS PAR 4,4'-METHYLENE-BIS-(3-CHLORO-2,6-DIETHYLANILINE)
Publication
Application
Priority
- US 9311233 W 19931117
- US 98750192 A 19921207
Abstract (en)
[origin: WO9413722A1] Polyurethane prepolymers are disclosed prepared with mononuclear aromatic diisocyanate such as toluene diisocyanate and an aliphatic diisocyanate such as H12MDI. These prepolymers can be cured with 4,4'-methylene-bis-(3-chloro-2,6-diethylaniline) to form a cured urethane elastomer with reduced propensity to crack during the curing process, extended pour life (a slower rate of viscosity buildup after curative and prepolymer are mixed), low hysteresis, and a low level of free toluene diisocyanates and/or other toxic or volatile substances to increase worker safety during processing. It has also been found that prepolymers made from toluene diisocyanate and cured with a blend of two aromatic diamine curatives yield urethane elastomers with the same reduced propensity to crack during the curing process.
IPC 1-7
IPC 8 full level
C08G 18/10 (2006.01); C08G 18/32 (2006.01); C08G 18/38 (2006.01); C08G 18/65 (2006.01); C08G 18/72 (2006.01); C08G 18/75 (2006.01); C08G 18/76 (2006.01)
CPC (source: EP KR US)
C08G 18/10 (2013.01 - EP KR US); C08G 18/38 (2013.01 - KR); C08G 18/724 (2013.01 - EP US); C08G 18/7621 (2013.01 - EP US); C08G 2380/00 (2013.01 - EP US)
Designated contracting state (EPC)
AT DE FR GB NL SE
DOCDB simple family (publication)
WO 9413722 A1 19940623; AT E153351 T1 19970615; AU 5613494 A 19940704; CA 2150386 A1 19940623; CA 2150386 C 20040316; DE 69310927 D1 19970626; DE 69310927 T2 19971009; EP 0672075 A1 19950920; EP 0672075 B1 19970521; FI 111736 B 20030915; FI 113373 B 20040415; FI 20011153 A 20010601; FI 952744 A0 19950605; FI 952744 A 19950605; JP 2689376 B2 19971210; JP H07509274 A 19951012; KR 100275076 B1 20001215; KR 950704384 A 19951120; US 6046297 A 20000404
DOCDB simple family (application)
US 9311233 W 19931117; AT 94901604 T 19931117; AU 5613494 A 19931117; CA 2150386 A 19931117; DE 69310927 T 19931117; EP 94901604 A 19931117; FI 20011153 A 20010601; FI 952744 A 19950605; JP 51418493 A 19931117; KR 19950702276 A 19950605; US 75806796 A 19961127